https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82084
--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Mon Sep 18 11:07:50 2017 New Revision: 252919 URL: https://gcc.gnu.org/viewcvs?rev=252919&root=gcc&view=rev Log: 2017-09-18 Richard Biener <rguent...@suse.de> Backport from mainline 2017-08-28 Richard Biener <rguent...@suse.de> PR tree-optimization/81977 * tree-ssa-sccvn.c (vn_reference_lookup_3): Fix look through memcpy. * g++.dg/torture/pr81977.C: New testcase. 2017-09-04 Richard Biener <rguent...@suse.de> PR tree-optimization/82084 * fold-const.h (can_native_encode_string_p): Declare. * fold-const.c (can_native_encode_string_p): Factor out from ... (native_encode_string): ... here. * tree-vect-stmts.c (vectorizable_store): Call it to avoid vectorizing stores from constants we later cannot handle. * g++.dg/torture/pr82084.C: New testcase. 2017-07-25 Richard Biener <rguent...@suse.de> PR middle-end/81505 * fold-const.c (fold_negate_const): TREE_OVERFLOW should be sticky. * gcc.dg/ubsan/pr81505.c: New testcase. Added: branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr81977.C branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr82084.C branches/gcc-6-branch/gcc/testsuite/gcc.dg/ubsan/pr81505.c Modified: branches/gcc-6-branch/gcc/ChangeLog branches/gcc-6-branch/gcc/fold-const.c branches/gcc-6-branch/gcc/fold-const.h branches/gcc-6-branch/gcc/testsuite/ChangeLog branches/gcc-6-branch/gcc/tree-ssa-sccvn.c branches/gcc-6-branch/gcc/tree-vect-stmts.c
